image/svg+xmlOpenclipartPortal2006-12-14T08:48:02a portal with two show-windowshttps://openclipart.org/detail/5248/portal-with-two-show-windows-by-vlodco_zotov-5248vlodco_zotovarchitectureartefactartefacts portalbuldingentryhouseofficeold schoolportalshopshop entryshowwindow